This study examines patterns of growth and nutritional status of indigenous Tsimane' children under 9 years of age (n = 199 boys and 210 girls), based on a cross-sectional sample from 58 villages from the Beni Deparment of lowland Bolivia. Compared with US children, Tsimane' children are quite short, with linear growth tracking at or below the US 5th centile in both sexes. The prevalence of low height-for-age ("stunting;" HA Z-scores =-2) is 52% in boys and 43% in girls. In contrast, weight-for-height in Tsimane' children approximates the US median, with the prevalence of low weight-for-height ("wasting"; WH Z-scores =-2) being only 4% and 6% in boys and girls, respectively. Tsimane' boys and girls are leaner than their US peers, but their levels of body fatness are not so low as to indicate severe energy stress. Arm muscularity of Tsimane' children is similar to that of their US age peers, and this suggests that they are not experiencing acute protein malnutrition. Variation in measures of nutritional status of Tsimane' children is modestly correlated with village-level differences. Degree of isolation, as measured by distance to urban centers or to primary forest, was not a strong predictor of children's anthropometric status. Rather, in both boys and girls, nutritional status was most strongly associated with number of teachers in the village, a measure of access to education. Comparative analyses indicate that high levels of statural growth stunting are common among indigenous populations throughout lowland South America. This problem appears to be largely attributable to poor dietary quality (diets low in key micronutrients) and high disease loads. Further research is needed to identify the specific causes and potential interventions for the high rates of childhood growth stunting in this region.
Wildlife (bushmeat or game) is the primary game. The results indicated that the price of fish and meat from livestock is positively correlated with con-source of protein for most poor households in tropical forests, and its consumption is resulting in unsustainable sumption of wildlife, suggesting that policy makers may be able to reduce the unsustainable hunting of wildlife hunting of large animals, even in isolated regions. As a result, loss of fauna is often a more immediate and for food by reducing the price of fish and the price of meat from domesticated animals relative to that of significant threat to the conservation of biological diversity in tropical forests than is deforestation. Although the wildlife. Increasing the production of livestock without causing environmental degradation will require long-potential eCects of the extirpation from tropical forests of large, seed predating and seed dispersing wild term public investment in agricultural research and extension, and substitution of fish for game meat in the animals is poorly understood, it is likely that there will be irrevocable changes in the structure and function absence of sustainable management regimes will result in over-exploitation of riverine and lacustrine fish stocks. of these ecosystems. We carried out a survey of 510 households of Tsimane' Amerindians in the rainforest of Bolivia to investigate how the prices of game and meat Keywords Bolivia, bushmeat, game, price elasticities, tropical forests, Tsimane' Amerindians, wildlife. from domesticated animals aCect the consumption of to species that are hunted for food. Hunting of wildlife Lilian Apaza and Eddy Pé rez Departamento de Biología, Universidad will alter the seed dispersal potential of up to 80% of Mayor de San André s, Casilla 10077-Correo Central Campus the tree species, aCecting seed shadows, seed rain, and
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